JP5993152B2 - Adjustable tie bar for marine engine - Google Patents

Description

  The present invention relates to a tie bar. In particular, the present invention relates to a marine engine tie bar with adjustable length.

  A tie bar connects outboard motors, and a tie bar whose length can be adjusted is well known.

  However, the conventional tie bar has a structure that becomes a screw adjusting mechanism that is relatively exposed to an environment including water and waste. This can lead to premature damage of the tie bar due to corrosion and / or wear and breakage, particularly under salt water conditions.

  These problems may be exacerbated by the relatively harsh and diverse forces that can be applied to tie bars.

  Some embodiments according to the present invention provide a tie bar that can overcome some of the above disadvantages. It is an object of the present invention to provide an improved tie bar.

  In one embodiment, a tie bar having a first subassembly and a second subassembly is provided. The first subassembly includes an end configured to connect to the propulsion device, a first tube extending from the end, an operably connected to the end, and disposed within the first tube, at least partially And a screw member extending along the first tube. The second subassembly includes an end configured to couple with a further propulsion device and a second tube extending from the end of the second subassembly. The second subassembly is configured to be screwed with the screw member. The distance between the end portions can be selectively adjusted by the member.

  In another embodiment, a tie bar having a pair of spaced ends configured to couple to a pair of propulsion devices may be provided. The tie bar has a pair of telescopic tubes that are operatively connected to the pair of ends and extend from the pair of ends. The screw member is placed completely within the tube. A screw member is fixedly connected to one tube near the first end. The screw member is operatively screwed to the other tube in the vicinity of the second end spaced from the first end.

  In other embodiments, the tie bar may be provided in combination with a propulsion device.

  Certain exemplary embodiments according to the present invention will be more readily understood from the following description with reference to the accompanying drawings.

FIG. 3 is a top rear perspective view of a boat with a plurality of propulsion devices and an improved steering assembly. FIG. 6 is a top front perspective view of an improved steering assembly including a propulsion device and a tie bar. FIG. 6 is another perspective view of an improved steering assembly and propulsion device. FIG. 5 is a partially exploded perspective view of a central steering hydraulic actuator of an improved steering assembly. FIG. 3 is a partially exploded, partial view of a central actuator of an improved steering assembly. FIG. 3 is an exploded isometric view of one of the tie bars shown in FIG. 2. FIG. 7 is a side view of the tie bar shown in FIG. 6 fully assembled and showing the tie bar in the extended position. FIG. 8 is a cross-sectional side view of the tie bar shown in FIG. 7 with the tie bar in a fully retracted position. FIG. 8 is a top plan view of the tie bar shown in FIG. 7, showing the tie bar at an intermediate position. FIG. 10 is an end view of the tie bar shown in FIG. 9. FIG. 11 is a cross-sectional view of the tie bar shown in FIG. 10, taken along line 11-11 in FIG. 10, showing a male and female connector. FIG. 12 is an enlarged cross-sectional view of the tie bar shown in FIG. 11, showing the male and female connectors in more detail. FIG. 14 is a cross-sectional view of the tie bar shown in FIG. 9 taken along line 13-13 in FIG. FIG. 8 is a side cross-sectional view of the tie bar shown in FIG. 7 with the tie bar in a fully extended position. FIG. 6 is a perspective view of a tie bar according to another embodiment of the present invention.

  Referring to the drawings, first, FIG. 1 shows a ship 20 having a plurality of propulsion devices in the form of three outboard motors 12, 14, 16. However, in other embodiments, the vessel 20 may include any suitable number of inboard and / or outboard motors. Two engines are common, and up to four engines can be found on entertainment vessels. Further, the ship 20 includes a steering chamber 18 including a steering wheel 19 for steering the ship 20. Steering wheel 19 is operably connected to a hydraulic pump (not shown) and is part of a hydraulic steering assembly used to steer the ship.

  As best shown in FIG. 2, the engines 12, 14, 16 are mounted on the stern 22 of the vessel 20 shown partially. The center engine 14 is attached to the recessed portion disposed in the center of the stern 22. In other embodiments, it can be incorporated into a stern that is not recessed. The starboard engine 12 and the port engine 16 are attached to both sides of the stern 22 outside the recess 24. The center engine 14 is offset up and down relative to the starboard engine 12 and port engine 16 accordingly. Each engine is mechanically coupled by a steering assembly, generally indicated by reference numeral 26. Thereby, an engine can be steered simultaneously. The steering assembly 26 shown better in FIG. 3 includes a plurality of steering actuators 28, 30, 32, together with members that connect the actuators together, in this embodiment tie bars 34 and 36 that connect adjacent steering actuators. . The steering actuator has substantially the same structure and substantially the same function.

  FIG. 4 shows the center steering actuator 30 in more detail. The central steering actuator 30 includes a hydraulic cylinder 38, and a piston rod 40 is reciprocally mounted in the cylinder to allow relative movement of the cylinder 38 along the piston rod shaft 91. The cylinder has a pair of spaced apart cylinder arms 42 and 44 that extend radially outward of the cylinder 38. A pivot plate 46 is pivotally connected to each cylinder arm 42 and 44 by pivot pins 48 and 50, respectively. A pair of screws 86 and 88 apply a compressive force to the pivot pins 48 and 50 to maintain the pivot pins in place. The pivot plate 46 extends between the cylinder arm 42 and the cylinder arm 44 so that both cylinder arms can pivot about the pivot plate. The support arms 52 and 54 are connected to the tilt rod 56 of the tilt pipe (not shown) of the central engine 14 shown in FIGS. 1 to 3 at both ends of the piston rod 40. Support arms 52 and 54 limit the axial movement of piston rod 40 relative to vessel 20. Further, the support arms 52 and 54 allow the circular motion of the cylinder 38 and the piston rod 40 around the tilt axis 105 while keeping the piston rod axis 91 parallel to the tilt axis 105.

  Both ends of the cylinder 38 are hydraulically connected to a helm pump (not shown) by hydraulic conduits 58 and 60. The cylinder 38 is actuated by hydraulic oil pumped from the helm pump to linearly reciprocate relative to the piston rod 40 as is well known in the art. In particular, the piston rod 40 remains stationary in the axial direction with respect to the ship 20 shown in FIG. 1 while the cylinder 38 reciprocates with respect to the ship 20.

  Referring to FIG. 2, a steering member in the form of a steering handle 62 of the central engine 14 is pivotally connected to a pivot plate 46 of the central steering actuator 30. As a result, the relative linear motion of the cylinder 38 shown in FIG. 4 is transmitted to the steering handle 62. As a result, the rudder handle 62 pivots around the steering shaft 110 to steer the central engine 14. The starboard engine 12 and the port engine 16 are also steered by the starboard side steering actuator 28 and the port side steering actuator 32 in the same manner. Furthermore, the movement by any one of the steering actuators is transmitted to the other steering actuators by tie bars 34 and 36, thereby enabling the engine to be steered simultaneously. As described above, the steering assembly 26 and the steering actuators 28, 30, and 32 are assumed to be conventional.

  However, as shown in FIG. 4, the central steering actuator 30 includes asymmetric tie bar mounting portions 64 and 66. The tie bar mounting portions 64 and 66 include openings 68 and 70, respectively. The openings 68 and 70 extend in the axial direction in a direction substantially orthogonal to the piston rod shaft 91. Referring to FIG. 2, the actuator 28 has a tie bar mounting portion 67, and the actuator 32 has a tie bar mounting portion 69. The tie bar mounting portions 64, 66, 67, 69 are substantially the same, and one of the tie bar mounting portions 66 is shown in more detail in FIG. The tie bar mounting portion 66 includes a first portion 72 and a second portion 74 that extends angularly upward from the first portion 72 with respect to the piston rod shaft 91. In this embodiment, the first portion 72 of the tie bar mounting portion 66 has a substantially quadrangular shape, and the second portion 74 of the tie bar mounting portion 66 has a substantially asymmetric quasi-elliptical shape. A broken line 115 represents a boundary between the first portion 72 of the tie bar mounting portion 66 and the second portion 74 of the tie bar mounting portion 66.

  A connecting member in the form of a bolt 76 fixes the tie bar mounting portion 66 to the cylinder 38 of the central steering actuator 30. The bolt 76 extends in a direction substantially perpendicular to the piston rod shaft 91 and can be engaged with the groove 78 at the end ground 80 of the cylinder 38. Bolts 76 keep gland 80 in place and prevent gland 80 from detaching from cylinder 38 in response to frictional and vibration forces during operation of the hydraulic steering assembly.

  In this embodiment, the bolt 82 extends through the opening 70 of the tie bar mounting portion 66 and the ball joint 84 of the tie bar 36. Bolts 82 connect the tie bar attachment 66 to the tie bar 36 and connect the tie bar 36 in a substantially similar manner as seen in FIG. 2 thereby causing the central steering actuator 30 to become a port side steering actuator. 32. Referring to FIG. 5, the bolt 82 extends in a direction substantially perpendicular to the piston rod shaft 91, thereby enabling the tie bar 36 to pivot about the substantially horizontal axis 111 along the bolt 82. 36 can be connected to the tie bar mounting portion 66 on a vertical plane. The ball joint 84 articulates the tie bar mounting portion 66 and the tie bar 36. By articulating, when the engines 12, 14, and 16 are moved back and forth while steering the ship, the tie bar 36 can reciprocate along its longitudinal axis. As seen in FIG. 2, the central steering actuator 30 is connected to the starboard side steering actuator 28 in the same manner by the tie bar mounting portion 64, the tie bar 34, and the tie bar mounting portion 67. The ball joint is provided as an example only, but other types of joint connectors may be used, such as a universal joint, a double pin member, or a joint similar to that shown in FIG. 15 and described further below.

  6 to 14 show the tie bar, but in this embodiment, the tie bar 36 is shown in more detail. FIG. 6 is an exploded view of the tie bar 36 showing the various components of the tie bar, and FIG. 7 shows the tie bar in an assembled form.

  As best shown in FIG. 6, the tie bar 36 includes a first subassembly 114 and a second subassembly 116. The first subassembly 114 includes an end 92, a screw member that is a screw rod 160 in this embodiment, a detent nut 168, and a first tube that is an outer tube 182 in this embodiment.

  As shown in FIG. 8, the end 92 includes a circular protrusion 96 of the spherical recess 100 in which the ball 104 is disposed. Using the bushing 101 shown in FIG. 8 inserted between the ball 104 and the spherical recess 100, the ball 104 can be pivoted in the recess 100. Ball 104 has a recess 108 shaped to receive a bolt (not shown). In a manner similar to that shown in FIGS. 2 and 5, the end 92 is articulated with the mounting plate 71 and thus the steering actuator 32, as seen in FIG. As shown in FIG. 8, the end 92 is connected to the circular protrusion 96, and the end 159 extends from the circular protrusion 96 to the end 159 of the elongate part 156. The screw hole 158 extends rightward from the viewpoint of FIG.

  In this embodiment, the screw rod 160 has a first end 162 that is fixedly connected to the end 92 by being screwed into the screw hole 158 of the end 92. This connection is achieved by applying torque to either or both of the threaded rod and end. This screwing may be regarded as first holding means for connecting the screw rod 160 to the end portion 92. In this embodiment, an adhesive layer 165, which is Loctite 243 (registered trademark) in this embodiment, is also provided along at least a part of the threading disposed in the hole. The adhesive serves as an auxiliary or secondary holding means for connecting the screw rod 160 to the end 92. Any suitable adhesive may be used. The screw rod 160 extends toward the second end 164 opposite to the first end 162.

  The locking nut 168 has a first end 172 that contacts the end 159 of the end 92, and a second end 178 that is separated from the first end 172. As shown in FIG. 11, the detent nut 168 of this embodiment has a plurality of pinholes, in this embodiment four spaced pinholes 179, which are separated from the second end 178. It extends inward toward the first end 172 and applies torque to the detent nut. The detent nut includes a threaded inner opening 180 that extends from the first end 172 to the second end 178 through the detent nut. The opening 180 is shaped to receive the threaded rod 160 and, in this embodiment, to threadably engage with the threaded rod 160. This screwing may be accomplished by engaging the pinhole 179 and applying torque to the detent nut 168 until the end 172 contacts the end of the elongated portion 156. As seen in FIG. 8, the detent nut 168 of this embodiment includes a tapered wall 170 that extends away from the end 92 to the second end 178 of the detent nut. As it goes on, it extends outward from the threaded rod 160. The tapered wall 170 provides a smooth transition between the elongated portion 156 and the outer tube 182.

  The detent nut 168 has a threaded outer wall 174 that, in this example, extends from the second end 178 at least partially toward the first end 172. The outer wall 174 is slightly inset with respect to the location adjacent to the tapered wall 170. The annular shoulder 176 extends radially outward from the outer wall 174 to the tapered wall 170.

  The outer tube 182 has a first end 184, a second end 186 opposite the first end, and a cylindrical interior 188 extending from the first end to the second end. The tube includes a threaded inner surface 175 at a first end 184. The surface 175 faces the inner portion 188 and is screwed with the outer wall 174 of the detent nut 168. Outer tube 182 includes a tapered wall 187 proximate to second end 186 that extends outwardly from second end 186 toward at least partially toward first end 184. The threaded rod 160 is completely disposed within the interior 188 of the tube 182 and, in this embodiment, extends parallel to the tube 182.

  Referring again to FIG. 6, the tie bar second subassembly 116 includes an end 90, a connecting member 124, and a second tube, in this example an inner tube 122. The inner tube 122 includes a first part, which in this embodiment is a tube body 131, and a further screw member, in this embodiment, a second part which is a male-female connector 142.

  The end portion 90 is substantially the same as the end portion 92. As shown in FIG. 8, the circular protrusion 94, the spherical recess 98 in which the ball 102 is disposed, and the ball 102 and the recess 98 are interposed. A bushing 99 is included. The ball 102 has a recess 106 shaped to receive the bolt 82 shown in FIG. The end 90 is connected to the circular protrusion 94, the elongated portion 118 extending from the circular protrusion 94 to the end 103 of the elongated portion 118, and leftward from the viewpoint of FIG. 8 from the end 103. It has a screw hole 120 that extends.

  The connecting member 124 has a first cylindrical portion 126 that is threaded in this embodiment. The portion 126 can be disposed in the screw hole 120, can be screwed into the screw hole 120, and is shaped to be fixedly connected to the screw hole 120. This connection is achieved by applying torque to either or both of the connecting member 124 and the end 90. This screwing may be regarded as first holding means for connecting the connecting member 124 to the end 90. In this embodiment, an adhesive layer 165, which is Loctite 243 (registered trademark) in this embodiment, is also provided along at least a part of the threading disposed in the hole. Other adhesives may be used. The adhesive serves as an auxiliary or secondary holding means for connecting the connecting member 124 to the end 90.

  The connecting member 124 includes a second cylindrical portion 128 that is connected to the first cylindrical portion 126. In this embodiment, the second cylindrical portion 128 is also threaded to increase the diameter relative to the first cylindrical portion 126. Annular shoulder 130 is connected to portion 126 and extends radially outward therefrom to portion 128.

  The tubular body 131 has a first end 123, a second end 125 opposite to the first end, and an interior 137, and the interior 137 extends from the first end 123 to the second end 125. And a further hole 140 extending from the second end 125 to the first end 123 in this embodiment. Tubing 131 includes a threaded inner surface 136 at its first end 123 in this embodiment. The tubular body 131 is screwed into the second cylindrical portion 128 of the connecting member 124 via the inner surface 136 and is fixedly connected to the second cylindrical portion 128. For example, this screwing is achieved by applying torque to one or both of the end 90 and the tube 131. This screwing may be regarded as the first holding means. By arranging the connecting member 124 in this way, the end 123 of the tube 131 can come into contact with the end 103 of the end 90. In this embodiment, an adhesive layer 135 is also provided along at least a portion of the threading, in this example, Loctite 243®, which is an auxiliary or two connecting the connecting member 124 to the tube 131. It functions as the next holding means. Other adhesives may be used.

  The tubular body 131 of this embodiment includes a tapered wall 132 connected to the first end portion 123 and extending from the viewpoint of FIG. 8 to the right and away from the end portion 90 outward. The tapered wall 132 provides a smooth transition between the elongated portion 118 and the outer wall 133 of the tube 131. The inner tube 122 having the tube body 131 is molded so as to be disposed in the outer tube 182. The tapered wall 187 of the outer tube 182 provides a smooth transition between the outer wall 133 of the tube 131 and the outer wall 185 of the outer tube 182.

  The tubular body 131 has an annular groove 138 interposed between the end portions 123 and 125, and an annular seal which is an O-ring 139 disposed in the groove in this embodiment.

  Referring to FIG. 12, the tube 131 has a transversely extending passage 127 located adjacent to the second end 125. The passage 127 is offset in the axial direction with respect to the central axis 163 of the tube 122 as shown in FIG.

  The second part of the inner tube 122, i.e., the male and female connectors 142, is also best shown in FIG. 12, but the male and female connectors 142 have a first end 153 and a second end opposite the first end 153. It includes an end portion 143 and a threaded inner hole 154 extending from the first end portion to the second end portion. A threaded hole 154 is formed to receive and threadably engage the threaded rod 160. The male / female connector 142 includes a first portion 150 that is connected to a tubular body 131 extending from the first end 153 toward the second end 143. The first portion 150 is shaped to fit into the hole 140 of the tube body 131. In this embodiment, the first portion 150 includes an outer wall 151 that is threaded to threadably engage the threaded hole 140. This screwing can be regarded as a first holding means for the inner tube 122 by connecting the tube 131 and the connector 142 to each other.

  The connector 142 includes a second portion 155 that can be slidably disposed within the outer tube 182 and is shaped to extend from the second end 143 to the first end 153. The annular shoulder 129 extends radially outward from the outer wall 151 of the portion 150 to the outer wall 157 of the second portion 155. Portion 155 includes an annular groove 146 that extends radially inward toward hole 154 and is disposed between shoulder 129 and end 143. The groove 146 is shaped to receive an annular seal, which in this embodiment is an O-ring 148, and the O-ring 148 is then placed in slidable and sealable contact with the outer tube 182. The second portion 155 extends from the second end 143 toward the first end 153, and is a pair of spaced apart, axially offset, L-shaped elongated grooves 181 and 183 extending in the transverse direction. including. It is also conceivable that the end 143 having the grooves 181 and 183 is formed at least partially in the rectangular protrusion shown best in FIG. 6 so that it can be gripped with a wrench or the like.

  The connector 142 further includes an annular groove 152 disposed in the first portion 150 between the end 153 and the shoulder 129. When the male and female connectors 142 are completely screwed into the tube body 131 so that the end portion 125 of the tube body 131 and the shoulder portion 129 of the connector come into contact with each other, the groove 152 is aligned with the passage 127. As shown in FIGS. 6, 12, and 13, the holding pin 149 can be inserted from the opening 161 of the tube body 131 into the passage 127 and partially into the groove 152. By positioning the pin 149 in this manner, the connector 142 is prevented from rotating with respect to the tube body 131, so that the connector is fixed at a predetermined position. As a result, the pin 149 functions as a second holding unit for the inner tube 122 by connecting the tube body 131 and the connector 142 to each other.

8 and 14, during operation, the tie bar 36 is selectively adjustable in length from the fully contracted mode shown in FIG. 8 to the fully extended mode shown in FIG. . In order to extend the length of the tie bar 36, one of the end 90 and the end 92 may be rotated while keeping the other end fixed. Thereby, the threaded rod 160 is screwed into the hole 154 of the connector 142, the threaded rod (and the first subassembly 114) is moved to the right with respect to FIG. 8, and / or the connector 142 (and the second subset). The solid 116) is moved to the left with respect to FIG. As a result, when the user rotates the other tube assembly 114 and 116 relative to one of the tube assemblies 114 and 116, depending on which one is rotated, the distance between the centers of each assembly, another terminology, Then, it acts to increase or decrease the distance from end to end of the bar. The length of the tie bars, the length L ₁ that extends between the center of the ball 102 and 104 in the fully retracted position of FIG. 8, between the center of the ball 102 and 104 in the fully extended position of FIG. 14 It can change relatively to a large length L ₂ to stretching.

  Therefore, the tubes 122 and 182 are made telescopic, so that the tie bar is constructed using the tubes 122 and 182 to enclose and protect the screw mechanism comprising the screw rod 160 and the connector 142. Such screw mechanism protection is achieved by placing O-rings 139 and 148 between the first and second subassemblies so that the tubes 122 and 182 are in sealing engagement with each other. Can be strengthened. As a result, as disclosed herein, a tie bar sealed with a pair of seals that separate the tubes can cause water, debris, etc., that cause damage and corrosion to internal components over a relatively wide area. Provides a structure that prevents entry. Therefore, tie bars may be relatively more robust, waterproof and durable.

  O-rings 139 and 148 provide a further function that acts as a damper to prevent the various parts of the tie bar from vibrating due to vibrations from the ship or engine. Accordingly, the O-rings 139 and 148 thereby act to further suppress wear and damage that are originally generated due to fatigue stress or the like. In addition, the O-rings 139 and 148 arranged in this way may be visually attractive and give a tight impression.

  The O-ring 139 provides a function that serves as an indicator when the tie bar is no longer stretched. This is best illustrated in FIG. 14: the user may extend the tie bar 36 to a point where the end 186 of the outer tube 182 and the O-ring 139 meet and meet. Although it may be further extendable, the presence of a visible O-ring 139 serves as a visual clue to the user that the tie bar is at the recommended extension limit and should not be extended further.

  Of course, many variations are possible within the scope of the invention as described herein. For example, the end 90, the connecting member 124, and the inner tube 122 may be configured from a single component in the modified example. In further variations, the connecting member 124 may not need to connect the end 90 and the inner tube 122 directly together and / or be configured as a single piece, for example.

  End 92, detent nut 168, outer tube 182 may also be constructed from a single piece. Alternatively, if end 92 and outer tube 182 are directly connected to each other and / or constructed from a single piece, detent nut 168 is not required.

  Those skilled in the art can easily understand that there are many other methods for fixedly connecting the end 90, the connecting member 124, and the inner tube 122, and the end 92 and the screw rod 160. Like. For example, instead of screwing, the parts can be configured to be press-fitted and connected. Or the cross pin which connects components can also be provided. For any of the above modifications, an adhesive such as Loctite 243®, or any other suitable adhesive can be further provided to the secondary holding means. However, the adhesive itself is not required for any fixed connection.

  The annular grooves 138 and 146 are arranged in the inner tube 122 in the embodiment described in FIGS. However, in a modified example, the outer tube 184 may have an annular groove facing the inner part 188, and an O-ring may be disposed in the groove. Although two O-rings 139 and 148 have been disclosed, in a variation, a less preferred embodiment of the tie bar may be configured with only one or both of the O-rings 139 and 148.

  Another embodiment similar to that described above is shown in FIG. FIG. 15 has several features shown and described in previous embodiments (eg, FIG. 7). Regarding the second embodiment, the internal mechanism of the tie bar 236 is the same as that shown in the embodiment described in FIGS. However, the ends 290 and 292 are slightly different in the embodiment shown in FIG. 15 compared to the ends described in FIGS. 1-14 and will be described in more detail below.

  Referring to FIG. 15, the tie bar 236 includes a first assembly 214 and a second assembly 216. The first assembly 214 includes a detent nut 268 and an elongated portion 256. Elongate portion 256 is pivotally attached to end 292 with a hinge or pivot pin 204. The end 292 has a recess 208 that performs the same function as the recess 108 shown and described in the embodiment of FIGS.

  The second assembly 216 includes an inner tube 222 that connects to the elongated portion 218. End 290 is coupled to elongate portion 218 by a hinge or pivot pin 202. As such, the two ends 290 and 292 can pivot or operate relative to the elongated portions 218 and 256. The end 290 also includes a recess 206 that performs the same function as the recess 106 shown and described above. The inner tube 222 expands and contracts within the outer tube 282 in the manner shown and described above for the embodiment of FIGS.

  Those skilled in the art have shown most of the details described above by way of example only, and are not intended to limit the scope of the invention, which is determined by the following claims. You will understand that.

Claims (19)

And the end portion to the ship propulsion unit can be coupled, and an outer tube operatively extending from the end portion, connected to said end portion, disposed within the outer tube, along the outer tube at least partially A first subassembly having a first screw member extending;
A second subassembly having an end connectable with a further marine vessel propulsion device and an inner tube extending from the end, the inner tube including a tube having a hole, A second screw member, the second screw member having a first portion shaped to fit and engage in a portion of the tube body surrounding the hole of the tube body; A second portion that is slidably displaceable and sealable, has a threaded inner opening that is threadably engaged with the first screw member, and provides a separation distance between the ends by the member; A tie bar comprising: the second subassembly allowing selective adjustment. The combination of claim 1 , wherein a ball joint connects the end of the tie bar to the marine vessel propulsion device . The combination of claim 1 , wherein a double pin joint connects the end of the tie bar to the marine propulsion device . The tie bar according to claim 1, wherein the second screw member is a male and female connector connected to one end of the tubular body . The first portion and the second portion of the second screw member have outer walls, and an annular shoulder portion extends from the outer wall of the first portion of the second screw member to the second portion of the second screw member. The tie bar according to claim 1 , wherein the tie bar extends outward in a radial direction to the outer wall, and the shoulder portion is shaped to contact an inner end of the tubular body . The second portion of the second screw member has an annular groove, a first annular seal is disposed in the groove, and the seal abuts the outer tube in a slidable and sealable manner;
The tie bar according to claim 1 . The second screw member has an annular groove, a first annular seal is disposed in the groove, and the seal is positioned to slidably and sealably contact the outer tube;
The tie bar according to claim 1. The second screw member includes a first end disposed in the tubular body, a second end spaced from the tubular body, and the first end of the second screw member from the second end of the second screw member. A pair of spaced apart, axially offset, transversely extending elongate grooves extending toward the ends, the grooves securing the second screw member in the tube so as to be screwable. The tie bar according to claim 1 , wherein the tie bar forms a protrusion that can be gripped in the same manner . The tubular body has a passage extending in a transverse direction, the first portion of the second screw member has an annular groove, and the annular groove is formed so that the first portion of the second screw member is in the tubular body. And the tie bar further includes a retaining pin that is insertable into the passage and partially insertable into the annular groove, the retaining pin being aligned with the passage of the tubular body. The tie bar according to claim 1, wherein the tie bar is positioned so as to prevent the second screw member from rotating with respect to the tubular body, and serves to fix the second screw member in a predetermined position . The outer tube and the inner tube are telescopic, the outer tube is formed to receive the inner tube, the first screw member is a screw rod, and the tie bar is formed of the outer tube and the tube body. A second annular seal disposed at least partially interposed therebetween.
The tie bar according to claim 7 . The seal is positioned to prevent the first screw member from coming into contact with water and to serve as a vibration damper to reduce vibration of the tie bar that is generated from vibration of the marine vessel propulsion device. 10. A tie bar according to 10 . And further including an annular seal disposed at least partially between the outer tube and the tube, wherein the tie bar can vary from a fully contracted position to a fully extended position, When the tie bar is in any position within the range from the fully contracted position to the front of the fully extended position, the tie bar is hidden by the outer tube , and the tie bar is in the fully extended position. there When, disposed so as to be exposed to the outer tube, indicating by said seal, said at what point tie bar is fully extended position, the tie bar according to claim 1. The end portion of the first subassembly includes a hole, and the first screw member is partially disposed in the hole and fixedly connected to the end portion, and the first subassembly includes the first subassembly. And further including a detent nut having a threaded inner hole threadedly engaged with the first screw member, wherein the detent nut is disposed to contact the end of the first subassembly, and the detent nut The tie bar of claim 1, further comprising a threaded outer wall threadedly engaged with the outer tube . The tie bar according to claim 13 , wherein the end portion of the first subassembly is fixedly connected to the first screw member via an adhesive. The end of the second subassembly includes a hole, the second subassembly further includes a connection member, the connection member partially within the hole at the end of the second subassembly. is disposed, fixedly connected to the hole, is partially disposed within the tube, fixedly connected to said tubular body, said connecting member, said end portion of said second subassembly The tie bar according to claim 13 , wherein the tie bar is fixedly connected to the pipe body through an adhesive and fixedly connected to the pipe body through an adhesive. The tie bar of claim 1, wherein the first end is pivotally connected to the outer tube and the second end is pivotally connected to the tube . The tie bar according to claim 1, wherein the first end portion is screwed to the outer tube , and the second end portion is screwed to the tube body . A combination of a first vessel propulsion device, a second vessel propulsion device and a tie bar, wherein the tie bar is:
An end connected to the first marine vessel propulsion device, an outer tube operably extending from the end, and connected to the end and disposed within the outer tube and at least partially along the outer tube A first subassembly having a first screw member extending to
A second subassembly comprising an end connectable to a further marine vessel propulsion device, an inner tube extending from the end of the second subassembly, the tube having a hole, The inner pipe includes a screw member, and the second screw member has a first portion shaped to fit and engage within a portion of the tube surrounding the hole of the tube. A second portion that is slidably displaceable within the outer tube and is sealable, and has a threaded inner opening that is threadably engaged with the first screw member, and is spaced apart from the ends. And a second subassembly that allows the distance to be selectively adjusted by the member.   The combination according to claim 18, wherein the marine vessel propulsion device is an outboard motor.

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